The Threaded Ring (11/4") (No. 9-19-067-K13)) and Snap Ring (11/4") (No. 9-19-066-A13) are used togetherwith the Vacuum End Sleeve (11/4") (No. 9-21-047-K13) or the Tool End Sleeve (11/4") (No. 9-21-048-K13) for Hose (No. 9-21-049-GN1) repair or when conneting two Hoses (No. 9-21-049-GN1).